style: Migrate to stable-only rustfmt configuration

- Remove nightly-only features from .rustfmt.toml and vendor/ss58-registry/rustfmt.toml
- Removed features: imports_granularity, wrap_comments, comment_width,
  reorder_impl_items, spaces_around_ranges, binop_separator,
  match_arm_blocks, trailing_semicolon, trailing_comma
- Format all 898 affected files with stable rustfmt
- Ensures long-term reliability without nightly toolchain dependency

bizinikiwi/primitives/crypto/hashing/proc-macro/src/impls.rs

@@ -48,17 +48,19 @@ impl Parse for InputBytes {
 						syn::Expr::Lit(lit) => match &lit.lit {
 							syn::Lit::Int(b) => bytes.push(b.base10_parse()?),
 							syn::Lit::Byte(b) => bytes.push(b.value()),
-							_ =>
+							_ => {
 								return Err(syn::Error::new(
 									input.span(),
 									"Expected array of u8 elements.".to_string(),
-								)),
+								))
+							},
 						},
-						_ =>
+						_ => {
 							return Err(syn::Error::new(
 								input.span(),
 								"Expected array of u8 elements.".to_string(),
-							)),
+							))
+						},
 					}
 				}
 				return Ok(InputBytes(bytes));